The annual Le Mans 24 Hour race brings in hundreds of thousands of spectators to watch the giants of motor racing put their endurance to the ultimate test. Every year, technology improves and the cars get a little faster. In 1955, that push for ultimate speed results in a catastrophe that changes the sport forever. For a full list of sources, see the show notes at timharford.com. Get ad-free episodes, plus an exclusive monthly bonus episode, to Cautionary Tales by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks exclusive binges, and bonus content for all Pushkin shows. Subscribe on Apple: apple.co/pushkinSubscribe on Pushkin: pushkin.fm/plusSee omnystudio.com/listener for privacy information.